package cn.tedu.boot21.controller;

import cn.tedu.boot21.entity.Emp;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;

@Controller
public class HelloController {
//    @RequestMapping("/hello")
//    public void hello(HttpServletResponse response) throws IOException {
//        response.setContentType("text/html;charset=utf-8");
//        PrintWriter pw = response.getWriter();
//        pw.println("欢迎<h1>欢迎</h1>");
//        pw.close();
//    }
    @RequestMapping("/hello")
    @ResponseBody//SpringMVC 框架提供的注解 作用是可以通过返回值的方式给客户端响应数据
    public String hello(){
        return "22331";
    }
    @RequestMapping("/param1")
    @ResponseBody
    public String param1(HttpServletRequest request){
        String info = request.getParameter("info");
        return "接收到了参数:"+info;
    }
    @RequestMapping("/param2")
    @ResponseBody
    //通过通过变量名的形式
    public String param2(String name,int age){
        return "接收到参数:"+name+age;
    }
    @RequestMapping("/param3")
    @ResponseBody
    //通过实体类的形式
    public String param2(Emp emp){
         return emp.toString();
    }























}
